KR200333460Y1 - Digital printing unit for developing and printing apparatus - Google Patents

Abstract

The present invention relates to a digital printer unit for a photo developing apparatus, comprising: a light source, an infrared ray blocking filter for blocking infrared rays included in light emitted from the light source, a diffusion glass portion for diffusing light passing through the infrared ray blocking filter; A diffuser tube that diffuses and mixes the light that has passed through the diffusion glass, a c, m, y (cyan, magenta, yellow) filter that filters the light that has passed through the diffuser, and a light that passes through the c, m, y filter An opaque glass unit for converting light into a uniform amount of light, a color wheel for color mixing while rotating the light passing through the opaque glass unit at high speed, a light tunnel for dividing light from the color wheel into a predetermined size, and a light tunnel The relay lens converts the emitted light into linear light with a uniform amount of light, the digital image part in which the digital image signal is formed according to the image signal transmitted from the computer, and the light passing through the relay lens And a magnification lens for reflecting to the photo paper and passing the digital image output from the digital image portion toward the photo paper, and a magnification lens for expanding and projecting the digital image output from the digital image portion by the tree prism onto photo paper. do. As a result, it is possible to reduce the loss of the digital image to be printed and obtain a high-definition picture.

Description

DIGITAL PRINTING UNIT FOR DEVELOPING AND PRINTING APPARATUS}

The present invention relates to a digital printer unit for a photo developing apparatus, and more particularly, to a digital printer unit for a photo developing apparatus in which an internal optical system of the digital printing unit is improved.

Generally, a photo developing apparatus is used to print and develop an image of a subject on photo paper.

Conventionally, a photo developing apparatus is provided with an analog printer unit which provides light to a film in which an image of a subject is stored so that a negative image of the film is instantaneously exposed to photo paper so that a latent image forms on the paper. Was developed and printed on photo paper.

Recently, the tendency of printing and developing a subject image into digital data by photographing the subject with a digital device or the like without storing the image of the subject on a film and printing and developing the photo has been increasing.

Therefore, the conventional photo developing apparatus is provided with a digital printer unit having an optical system therein so as to receive a digital signal transmitted from a computer and a digital device storing an image of a subject and irradiate the digital image onto a photo paper. By alternately attaching and detaching the analog printer unit and the digital printer unit, a photo developing apparatus configured to print and develop digital images provided from computers and digital devices as well as printing and developing films has become popular.

On the other hand, the internal optical system configuration of the conventional digital imager unit for a photo developing apparatus is shown in FIG. As shown in the drawing, the conventional digital image printer unit 140 includes a halogen lamp 151 and an infrared cut filter 153 for blocking infrared rays included in light emitted from the halogen lamp 151. Color mixed by the R, G, B, W filter wheel 155 and the R, G, B, W filter wheel 155 for color mixing while rotating the light passing through the infrared cut filter 153 at high speed. The concave lens 157 for converting the light into linear light with a uniform amount of light, the diffuser plate 159 for diffusing the light passing through the concave lens 157, and the light passed through the diffuser plate 159 for color reproduction. The color filter 161 to adjust, the digital image unit 171 in which a digital image signal is formed according to an image signal transmitted from a computer (not shown), and the light passing through the color filter 161 are digital image unit 171. Is output from the digital image unit 171 by a pair of reflecting mirrors 175 made of spherical mirrors and a pair of reflecting mirrors 175. An enlarged lens 179 that enlarges and projects the digital image onto the photo paper 109 and a digital image that passes through the enlarged lens 179 and passes through and is detachably coupled to the main body 110 of the photographic apparatus. And a digital shutter 185 coupled to a lower portion of the digital image carrier 181 to adjust an exposure time of a digital image exposed to the photo paper 109 via the digital image carrier 181. .

By this configuration, when power is supplied to the halogen lamp 151, the halogen lamp 151 irradiates light, and the light emitted from the halogen lamp 151 is included in the light while passing through the infrared cut filter 153. After the infrared rays are blocked, color mixing is performed while passing through the R, G, B, and W filter wheels 155.

The color mixed light is diffused by the diffusion plate 159 while passing through the concave lens 157 and converted into linear light having a uniform amount of light, and the diffused light is adjusted to match the color reproduction by the color filter 161. The light reflected by the reflectors 175 and reflected by each of the reflectors 175 is irradiated to the digital image unit 171, and the digital image unit 171 forms an image of the digital image.

The digital image formed by the digital image unit 171 is enlarged by the magnifying lens 179, and the enlarged digital image passes through the digital image carrier 181 to be instantaneously operated by the digital shutter 185. The photo paper 109 is sensitive as it is exposed, and a latent image is formed on the photo paper 109.

However, in the conventional digital printer unit, since the light provided from the light source is reflected by a reflector made of a spherical mirror and is incident on the digital image part, the image output from the digital image part and projected onto the photo paper through the magnifying lens is taken. A portion of the image is partially formed, that is, a part of the image projected onto the photo paper is partially cut by the reflector, so that the area of the image to be printed is reduced, resulting in a loss of the image. In addition, in order to prevent loss of an image to be printed, the image output from the digital image unit and projected onto the photo paper through the magnifying lens should be projected to the upper region of the photo paper without being projected to the center area of the photo paper. There is a problem that the sharpness is lowered. And, since the reflector is made of a mirror, there is an uncomfortable problem of cleaning the dust attached to the mirror from time to time for picture quality.

Accordingly, an object of the present invention is to provide a digital printer unit for a photo developing apparatus which can reduce a loss of a digital image to be printed and obtain a high-definition picture.

1 is a perspective view of a photographic apparatus in which an analog printer unit and a digital printer unit are alternately mounted as one embodiment of the present invention;

2 is a perspective view of main parts of FIG. 1;

3 is a block diagram of an internal optical system of the digital printer unit according to the present invention;

4 is a block diagram of an internal optical system of a digital printer unit for a conventional photo developing apparatus.

* Explanation of symbols for the main parts of the drawings

7: Photo developing device 9: Photo paper

10: main unit 30: analog printer unit

40: digital printer unit 41: case

51: light source 53: infrared cut filter

55: diffusion glass portion 57: diffusion tube

59: C, M, Y filter 61: opaque glass

63: color wheel 67: light tunnel

69: relay lens 71: digital imaging unit

73: DMD Chip 75: Tree Prism

79: magnifying lens

In order to achieve the above object, the present invention, a light source, an infrared cut filter for blocking infrared rays included in the light irradiated from the light source, a diffusion glass portion for diffusing the light passing through the infrared cut filter, and the diffusion A diffusion tube for diffusing and mixing the light passing through the glass part, a c, m, y (cyan, magenta, yellow) filter for filtering the light passing through the diffusion tube, and the light passing through the c, m, y filter An opaque glass portion for converting light into a uniform amount of light, a color wheel for color mixing while rotating the light passing through the opaque glass portion at high speed, a light tunnel for dividing light from the color wheel into a predetermined size, and A relay lens for converting light from the light tunnel into linear light with a uniform amount of light, a digital image unit for forming a digital image signal according to an image signal transmitted from a computer, and light passing through the relay lens Reflecting the light toward the digital image unit and simultaneously magnifying and projecting the digital image output from the digital image unit toward the photo paper and the digital image output from the digital image unit by the tree prism onto photo paper. It provides a digital printer unit for a photo developing device comprising a lens for.

Here, the infrared cut filter, the diffusion glass part, the diffusion tube, the C, M, Y filter, the opaque glass part, the color wheel, the light tunnel, and the relay lens are arranged in a line along the axis of the light source, and the digital image part is the relay. The lens is disposed at a right angle to the axis of the light source adjacent to the lens, and the magnifying lens is disposed to be coaxial with the digital image unit, thereby reducing the size of the digital printer unit.

The digital imaging unit may include a digital micromirror device (DMD) chip. In particular, the tree prism is formed in a pair, and each reflecting surface of the tree prism through which light is reflected and passed is connected to the axis of the light source and the digital imaging unit. By arranging each other in contact with each other with a predetermined inclination, there is no fear that dust from the outside will adhere to each reflecting surface, so that each reflecting surface of the tree prism does not need to be cleaned at any time.

The color wheel may be formed of any one of R, G, B, W (red, green, blue, white) color wheels, and R, G, B (red, green, blue) color wheels.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a photographic apparatus in which an analog printer unit and a digital printer unit are alternately mounted as one embodiment of the present invention, and FIG. 2 is a perspective view of a main part of FIG. 1. As shown in these figures, the photographic apparatus 7 alternately attaches and detaches the analog printer unit 30 and the digital printer unit 40, so that not only the printing and developing of the film but also the computer (not shown) and It is configured to print and develop digital images provided from digital devices (not shown).

The photo developing apparatus 7 includes a main body 10 containing a photo paper 9 (refer to FIG. 3), a developer, and the like, and providing light to the film to instantaneously lighten the negative of the film so as to sensitize the photo paper 9. An analog printer unit 30 which causes latent images to form on the photo paper 9, and a digital printer unit 40 that forms an optical system therein so that a digital image is irradiated onto the photo paper 9 by receiving digital signals transmitted from a computer and a digital device. )

Inside the main body 10, a paper developing unit for developing a photo paper 9 having a latent image formed by an analog printer unit 30 or a digital printer unit 40 and a photo paper 9 having a latent image formed thereon (not shown). Is provided. The paper developing unit includes a developer tank, a bleaching tank, a washing tank, and the like, and the photo paper 9 having latent image formed by the analog printer unit 30 and the digital printer unit 40 passes through the paper developing unit, thereby producing a photo paper ( The image projected on 9) is printed.

In addition, the inside of the main body 10 is provided with a photo paper supply unit 11 for supplying the photo paper 9 and a cutting unit (not shown) for cutting the photo paper 9 with the latent image.

On the upper surface of the main body 10, an open portion 13 having a rectangular cross-sectional shape and partially penetrated toward the photo paper 9 is provided.

In addition, the upper surface of the main body 10 is provided with a support portion 17 which protrudes upward, forming a locking end 15 along the circumference of the opening portion 13. The support 17 is detachably coupled to the negative carrier 31 of the analog printer unit 30 or the digital image carrier 81 of the digital printer unit 40 on which the film to be printed and developed is placed.

Here, reference numeral 19 which is not described is a discharge port through which the photo paper cut by the cutting unit 9 is discharged to the outside of the main body 10, and reference numeral 21 denotes the photo paper 9 continuously discharged through the discharge port 19. Sorter to sort in order.

On the other hand, the digital printer unit 40 according to the present invention has a rectangular cylindrical case 41, on both sides of the case 41 to hold the digital printer unit 40 to be detachable to the support 17. The handle portion 43 is formed. In addition, a plurality of vent holes 45 for air-cooling the inside of the case 41 are formed on both side surfaces of the case 41, and one side of the case 41 is for supplying power to the light emitting diode 51 to be described later. The terminal 47 is provided.

3 is a block diagram of the internal optical system of the digital printer unit according to the present invention. As shown, the digital printer unit 40 according to an embodiment of the present invention, the light source 51 and the infrared cut filter 53 for blocking the infrared rays included in the light emitted from the light source 51 and The diffusion glass part 55 for diffusing the light passing through the infrared cut filter 53, the diffusion tube 57 for diffusing and mixing the light passing through the diffusion glass part 55, and the diffusion tube 57 C, M, Y (cyan, magenta, yellow) filter 59 for filtering the light passing through, and the opaque glass portion for converting the light passing through the C, M, Y filter 59 into a light of a uniform amount of light ( 61, a color wheel 63 for mixing the color of the light passing through the opaque glass portion 61 while rotating at high speed, a light tunnel 67 for dividing the light emitted from the color wheel 63 into a predetermined size, A relay lens 69 for converting light emitted from the light tunnel 67 into linear light having a uniform amount of light, and a digital image forming image according to an image signal transmitted from a computer. The tree prism 75 through which the digital image output from the digital image unit 71 passes while reflecting the image unit 71 and the light passing through the relay lens 69 to the digital image unit 71 side, and the tree. An enlarged lens 79 that enlarges and projects the digital image output from the digital image unit 71 by the prism 75 onto the photo paper 9, and is coupled to the lower part of the case 41 to provide the enlarged lens 79. Digital image carrier 81 is passed through and is detachably coupled to the support 17, and coupled to the lower portion of the digital image carrier 81 through the digital image carrier 81 to the photo paper 9 It has a digital shutter 85 for adjusting the exposure time of the exposed digital image.

The light source 51 is preferably composed of any one of a halogen lamp and a light emitting diode.

The diffusion glass unit 55 preferably has a wide diffusion angle so that the light emitted from the light source 51 is evenly distributed.

The diffuser tube 57 has a pipe shape, is made of a mirror to increase the reflectance of light, effectively mixes the light passing through the diffused glass portion 55 and serves as a guide of the light. Here, the cross section of the diffusion tube 57 may be made of any one of a circular or polygonal.

The color wheel 63 rotates at high speed (approximately 7200 rpm) by the attached motor 65, thereby inducing color mixing of the light from the opaque glass portion 61 toward the light tunnel 67 to achieve color reproduction. It becomes possible. The color wheel 63 is preferably made of any one of R, G, B, W (red, green, blue, white) color wheels, and R, G, B (red, green, blue) color wheels.

The light tunnel 67 divides the light emitted from the color wheel 63 according to the size of the digital micromirror device (DMD) chip 73 of the digital imaging unit 71, which will be described later. Act as a guide.

The digital imaging unit 71 is electrically connected to a computer, and includes a DMD chip 73 through which a digital signal edited and modified by the computer is transmitted. Here, the liquid crystal on silicon (LCOS) may be applied to the digital imaging unit 71 instead of the DMD chip 73.

The tree prism 75 has a triangular prism shape and consists of a pair. Each of the tree prisms 75 reflects the light passing through the relay lens 69 toward the digital imaging unit 71 and simultaneously transmits the digital image output from the digital imaging unit 71 toward the photo paper 9. Each of the reflecting and passing reflection surfaces is disposed in contact with each other with a predetermined inclination with respect to the axes of the light source 51 and the digital image portion 71. On the other hand, the tree prism 75 is a reflection of the light reflecting and passing through each of the mutual contact, there is no fear of dust from adhering to each reflective surface, it is not necessary to clean each reflective surface at any time, the user is convenient Can be used.

The digital image carrier 81 which detachably couples the digital printer unit 40 to the support 17 has a plate shape and has an inner circumference of the support 17 so as to be supported by the locking end 15 of the support 17. It has a shape and size corresponding to. The digital image carrier 81 is coupled to the lower surface of the case 41 of the digital printer unit 40 to detachably couple the case 41 to the support 17, and the digital image carrier 81 is supported by the support ( When mounted to the 17, the digital image carrier 81 is fitted along the inner circumference of the support 17, and the lower surface of the digital image carrier 81 is supported by the locking end (15). An image passing hole 83 through which the digital image output from the digital image unit 71 passes is formed on the plate surface of the digital image carrier 81.

Here, looking at the arrangement of the components of the digital printer unit 40 accommodated in the case 41, the infrared cut filter 53, the diffuser glass portion 55, the diffusion tube along the axis of the light source 51 ( 57, C, M, Y filters 59, opaque glass portions 61, color wheels 63, light tunnels 67, relay lenses 69, and tree prisms 75 are arranged in a row. The tree prism 75 reflects the light passing through the relay lens 69 toward the digital image unit 71, and simultaneously transmits the light such that the digital image output from the digital image unit 71 passes toward the photo paper 9. Each reflecting surface of the reflecting and passing tree prism 75 is disposed in contact with each other with a predetermined inclination with respect to the axis of the light source and the digital image portion 71. The digital image part 71 is disposed on the upper part of the triprism 75 so as to be perpendicular to the axis of the light source 51, and the magnifying lens 79 is disposed to be coaxial with the digital image part 71. have.

With this configuration, when the digital printer unit 40 of the photo developing apparatus 7 according to the embodiment of the present invention is supplied with power to the light source 51, the light source 51 irradiates light, The light irradiated from the light source 51 passes through the infrared cut filter 53 to block the infrared rays included in the light.

Light passing through the infrared cut filter 53 is evenly distributed while passing through the diffusion glass part 55.

The light exiting the diffusion glass part 55 is diffused and mixed through the diffusion tube 57.

The light exiting the diffusion tube 57 passes through the C, M, and Y filters 59, and filters the light to have a density necessary for color reproduction of the light reaching the photo paper 9.

Light emitted from the C, M, and Y filters 59 passes through the opaque glass part 61 and is converted into light having a uniform amount of light.

Light passing through the opaque glass portion 61 passes through the color wheel 63 for color reproduction, and color mixing is performed.

The color-mixed light passes through the light tunnel 67 and is divided according to the size of the DMD chip 73 of the digital imaging unit 71, and is converted into linear light having a uniform amount of light through the relay lens 69. Irradiated toward the tree prism 75.

The light irradiated to the tree prism 75 is reflected by one side of the reflection surface of the tree prism 75 toward the DMD chip 73 of the digital imaging unit 71, and the DMD chip 73 of the digital imaging unit 71. Will form a digital image.

The digital image formed by the digital image unit 71 passes through the tree prism 75 and is enlarged by the magnifying lens 79.

The enlarged digital image is instantaneously exposed by the operation of the digital shutter 85 through the image passing hole 83 of the digital image carrier 81, so that the photo paper 9 is sensitized to cause a latent image on the photo paper 9. do. At this time, the digital image projected onto the photo paper 9 is projected on the center region of the photo paper 9 regardless of the shape of the triprism 75, so that the resolution (pixels per inch) of the photo increases, thereby It is possible to reduce the loss of digital images and to obtain high-definition pictures.

The photo paper 9 having latent images is able to obtain a picture by completing a series of development work.

As such, the light source constituting the internal optical system for acquiring the digital image, the infrared cut filter, the diffuse glass portion, the C, M, Y filter, the opaque glass portion, the color wheel, the light tunnel, the relay lens And the digital image part, the tree prism, and the magnification lens are efficiently disposed, and in particular, the light from the light source is reflected on the digital image part through the tree prism, and the digital image output from the digital image part is reflected. By projecting onto photo paper through the prism, it is possible to reduce the loss of the digital image to be printed and obtain a high-definition picture. In addition, since the reflection surfaces through which the light of the tree prism reflects and passes are disposed in contact with each other, there is no fear that dust from the outside will adhere to each reflection surface, so that it is not necessary to clean each reflection surface of the tree prism from time to time.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the utility model registration claims of the present invention.

As described above, according to the present invention, there is provided a digital printer unit for a photo developing apparatus which can reduce a loss of a digital image to be printed and obtain a high-definition picture.

Claims (4)

With a light source, An infrared cut filter for blocking infrared rays included in light emitted from the light source; A diffusion glass unit configured to diffuse light passing through the infrared cut filter; A diffusion tube for diffusing and mixing the light passing through the diffusion glass part; C, M, Y (cyan, magenta, yellow) filter for filtering the light passing through the diffusion tube, An opaque glass part for converting light passing through the C, M, and Y filters into a light having a uniform amount of light; A color wheel for color mixing while rotating the light passing through the opaque glass part at high speed; A light tunnel for dividing the light emitted from the color wheel into a predetermined size; A relay lens for converting light emitted from the light tunnel into linear light having a uniform amount of light; A digital video unit for forming a digital video signal according to a video signal transmitted from a computer; A tree prism that reflects the light passing through the relay lens toward the digital image unit and simultaneously passes the digital image output from the digital image unit toward photo paper; And a magnifying lens for magnifying and projecting the digital image output from the digital image unit by the tree prism onto photo paper. The method of claim 1, The infrared cut filter, the diffusion glass unit, the diffusion tube, the C, M, Y filter, the opaque glass unit, the color wheel, the light tunnel, and the relay lens are arranged in a line along the axis of the light source, and the digital image unit is connected to the relay lens. And adjacently arranged at right angles to the axis of the light source, wherein the magnifying lens is positioned coaxially with the digital imaging unit. The method of claim 2, The digital imaging unit includes a digital micromirror device (DMD) chip, The tree prism is formed in a pair, and the photo developing apparatus characterized in that each reflecting surface of the tree prism through which light is reflected and passed is disposed in contact with each other with a predetermined inclination with respect to the axis of the light source and the digital image part. Digital printer unit. The method of claim 1, The color wheel is any one of the R, G, B, W (red, green, blue, white) color wheel, R, G, B (red, green, blue) color wheel Printer unit.